------------------------------------------------------------------------------------------
Formula
------------------------------------------------------------------------------------------
tan θ = opp/adj
------------------------------------------------------------------------------------------
Apply formula to find x
------------------------------------------------------------------------------------------
[tex]tan(30) = \frac{x}{7}[/tex]
[tex] \frac{ \sqrt{3}}{3} = \frac{x}{7} [/tex]
[tex]3x = 7 \times \sqrt{3} [/tex]
[tex] x = \frac{ 7\sqrt{3}}{3}[/tex]
------------------------------------------------------------------------------------------
[tex]Answer: \ The \ length \ of \ x \ is \ \frac{ 7\sqrt{3}}{3} \ (Answer \ A)[/tex]
------------------------------------------------------------------------------------------
